Question

A pulse of crop ia grown in the term internal between two cereals crops to compemsate for the?

Answer 1

Nitrogen fixation of soil

Answer 2

An introduction to the reference crops
There are several reasons why the six reference crops -maize, grain sorghum, millet, peanuts, field beans, and cowpeas -are grouped together in one manual. All of the reference crops are row crops (grown in rows) and because of this, they share a number of similar production practices. Also, in developing nations, two or more of the crops are likely to be common to any farming region and are frequently interrelated in terms of crop rotation and intercropping (see Chapter 4, page 91) In addition, all of them are staple food crops. The developing countries are major producers of the reference crops, with the exception of maize.




Cereal crops versus pulse crops
Maize, grain sorghum, and millet are known as cereal crops, along with rice, wheat, barley, oats, and rye. Their mature, dry kernels (seeds) are often called cereal grains. All cereal crops belong to the grass family (Gramineae) which accounts for the major portion of the monocot (Monocotyledonae) division of flowering (seed-producing) plants. All monocot plants first emerge from the soil with one initial leaf called a seed leaf or cotyledon.

A germinating maize seedling; note that it has only one seed leaf, which makes it a monocot. Monocots emerge through the soil with a spike-like tip. They generally have fewer problems with clods and soil dusting than dicots.

Peanuts, beans, and cowpeas are known as pulse crops, grain legumes or pulses, along with others such as lima beans, soybeans, chickpeas, pigeonpeas, mung beans, and peas. The pulses belong to the legume family (Leguminosae) whose plants
produce their seeds in pods. Some legumes like peanuts and soybeans are also called oilseeds because of their high vegetable oil content.