Tài liệu Cao Đẳng Cộng Đồng Đồng Tháp miễn phí

Many people confuse plant nutrition with plant fertilization. Plant nutrition refers to the needs and uses of the basic chemical elements in the plant. Fertilization is the term used when these materials are supplied to the environment around the plant. A lot must happen before a chemical element ...

Be inverted and swished in a bucket of tepid (lukewarm) water. To prevent loss of soil, cover it with aluminum foil or plastic wrap. Large plants can be hosed down gently, or upper and lower surfaces of leaves can be wiped with a soft, wet cloth. Large plants can also be rinsed in a tepid shower. ...

- But don’t leave them for more than a day or two, or you’ll have purple, moldy peaches. C. Jar method - For a few tomatoes - Assemble the jars and remove the lids. - Put in one ripening banana per jar. - Put in two to four medium-sized green tomatoes per jar. Do not overfill the jar, or the ...

II. Transplanting method using machine Figure 2. Paddy plants transplanted by transplanting machine (Photo: http://www.hamco.vn/ban-tin-hamco) The use of machine for transplanting brings control to the space between the plants and the number of seedlings in the processes. The usual cultivation ...

4. Symptoms such as leaf yellowing or browning are also nutrient deficiencies. 5. Nutrient deficiencies affects fruits, leaves and flowers. 6. Nutrient deficiencies may be accompanied by stunted growth and poor flowering or fruiting. Task 2: Read part 5.1 and answer the following questions. 1/ Why ...

(Photo: urbanext.illinois.edu/roses/disease.cfm) It is unusual to see the insects at work, but they make their presence known by the perfectly round holes cut near the edges of the leaves. These leaf pieces are used to make egg partitions inside their burrows. The damage they cause is strictly ...

Attracted to fruit trees. They are treated with chemical formulations sprayed onto the tree during a fixed period from anticipated harvest time, which varies widely by product. Common insecticides use on fruit trees include: Carbaryl, Malathion, Metaldehyde, Azadirachtin, Permethrin and Pyrethrins. ...

Build terraced beds to reduce soil erosion over delicate, young plants and newly sown seed. Soils that are dry and sandy can be mulched with straw, grass clippings, black plastic, or other materials to retain moisture. A soil that is favorable to healthy root development supports the growth of ...

 Flowering is delayed.  Incomplete panicle emergence.  Nodal branches produced at upper nodes.  Partially exserted panicles and unfilled grains. 2.2. Factors favoring development disease - Presence of the vector and the host. - Tillering, reproductive, and maturity growth stages of the ...

Introduction UNIT 1 RICE MH35-01 On a global basis, rice ranks second only to wheat in terms of area harvested, but in terms of its importance as a food crop, rice provides more calories per hectare than any other cereal food grain. Objectives: By the end of the lesson, learners are able to: + ...